TY  - RPRT
TI  - On the use of path analysis and related procedures for the investigation of ecological problems
AU  - James B. Grace
AU  - Bruce H. Pugesek
PY  - 1998
DO  - 10.1086/286156
UR  - https://pubs.usgs.gov/publication/70206472
ID  - 70206472
ER  -